The invention discloses a control panel assembly system, a system framework of the control panel assembly system and a control panel assembly used in the control panel assembly system. Wiring difficulty can be reduced, adopted wires are reduced, the weight of wire bundles is reduced, unnecessary damage to the wire bundles is avoided, and meanwhile the system reliability of the control panel assembly system can be greatly improved. The system framework of the control panel assembly system is characterized in that a plurality of control panels are connected with a lighting system control panel assembly gate through a multi-channel CAN bus, each control panel is provided with a plurality of control modules with different safety performance grade requirements, a plurality of mutually independent power modules and a plurality of different digital signal processors, according to the control modules with different safety performance grades, one or more power modules are used for supplying power to the control modules, and when one of the multiple power modules breaks down, the control module with the high safety performance grade can be switched to enable another power module to be used for supplying the power.